Answer:
Sometimes true. It may be true at times if x or y equal each other, but if they do not equal each other it is not true
Step-by-step explanation:
We are given two expressions: x -3 and y - 3
Here x and y are two different variables.
These expressions are equal, when the value of x and the value of y are equal.
x - 3 = y -3 if x = y.
Therefore, the two expressions have the same value in sometimes.
That is, when x = y, then the value of two expressions are the same.
Example.
If x = 2 and y = 2, then
x - 3 = y - 3
2 - 3 = 2 - 3
-1 = -1
If they have different values, for x = 2 and y = 3
x - 3 = y - 3
2 - 3 = 3 -3
-1 = 0
Which is not true.
Therefore, the answer is sometimes.
write an equation of a line that passes through (1,1)and (6,6)
Answer:
y=x
Step-by-step explanation:
When y=x, then the line goes up 1 and right 1.
A recipe calls for 3/4 cup of brown sugar for every 3 eggs. What is the unit rate of eggs per cup?
Answer:
4 eggs per cup
Step-by-step explanation:
- 18
10
- 11 -
What’s the area of the shape and numbers ?
Answer:
1,980 would be the area and the perimeter would be 39 im pretty sure
Al and Tom are painting a shed. Working alone, Al can paint the shed in 2 hrs. Together they can paint the shed in 1.5 hours. How long would it take Tom to paint the shed on his own?
Answer:
6 hours.
Step-by-step explanation:
The formula sort of has to be invented.
Al
rate = 1 shed / 2 hours
Tom
rate = 1 shed / x hours.
Together.
rate = 1 shed / 1.5 hours.
Equation
1 shed / 2 hours + 1 shed / x hours = 1 shed / 1.5 hours.
1/2 + 1/x = 1/1.5 Put the fractions over a common denominator.
(x + 2) / 2x = 1 / 1.5 Cross Multiply
1.5(x + 2) = 2x Remove the Brackets.
1.5x + 3 = 2x Subtract 1.5x from both sides
3 = 2x - 1.5x
3 = 0.5x Multiply both sides by 2
6 = x
It would take Al 6 hours to do the shed on his own.
Last week, Juliet ran 22 kilometers. This week, she plans to run 2\frac{2}{5}2 5 2 times as far as last week. How many kilometers does Juliet plan to run this week?
Answer: 52.8 kilometers
Step-by-step explanation:
This week she plans to run 2²/₅ times as much as last week.
If she ran 22 kilometers last week, then multiple 22 by 2²/₅ to find out the number of kilometers to run this week.
First convert the improper fraction to a proper one:
2²/₅ = 12/5
= 12/5 * 22
= 264/5
= 52.8 kilometers
Will give brainliest
wich set of numbers is areanged in decreasing order? I need help thanks
Answer:
Send a pic of the problem.
Step-by-step explanation:
toy store is having a sale on puzzles. For each puzzle Naomi buys
she gets 75% off a second puzzle. The original price of a puzzle is $16.60.
How much would 4 puzzles cost? *
Answer:
4 puzzles would cost $41.50
Answer:
$41.50
Step-by-step explanation:
Add the currency of your sum then subtract but double the 75%
i hope this helped :)
Heather drew the scaled drawing of a train car shown below. She used the scale of 2 cm = 5 ft to complete the
drawing.
Train Car
10.8 cm
What is the actual length of the train car?
A.21.6 ft
B.27 ft
C.43.2 ft
D54 ft
Answer: c
Step-by-step explanation:
The required actual length of the train is given as 27 ft.
Given that,
Heather drew the scaled drawing of a train car shown below. She used the scale of 2 cm = 5 ft to complete the drawing.
The scale factor is defined as the ratio of the modified change in length to the original length.
here,
As given,
2 cm = 5 ft
1 cm = 5/2 ft
Tain car length = 10.8 m
Actual length = 10.8 × 5/2 = 27 ft
Thus, the required actual length of the train is given as 27 ft.
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The value of a movie poster is increasing at a rate of 3.5% per
year. In 1990, the poster was worth $20.25. Find the value of the
poster in 2013.
Answer:
44.55
Step-by-step explanation:
I actually didn't get the right answer and I just edited it right now I'm sorry I dont have an explanation!
simplify — п+(-3) + 3n +5
Answer:
4n+2
Step-by-step explanation:
Simplify (46)
Give your answer as a power of 4.
Answer:
0.00000368
Step-by-step explanation:
Suppose that an individual has a body fat percentage of 18.9% and weighs 141 pounds. How many pounds of her weight is made up of fat? Round your answer to the nearest tenth.
Please respond within the hour
Thanks
here is the proportion I used to get the answer. hopefully this helps
HELP!!!!!!!!!!!!!!!!!!!!!!!
Answer:
5 dollars for 1 sub
Step-by-step explanation:
y2-y1/x2-x1=unit rate
20-10/4-2
10/2
5
Find f(-4) if f(x)=-x-5
Answer: -1
Step-by-step explanation:
f(x)=-x-5
f(-4)=-(-4)-5
f(-4)=4-5
f(-4)=- 1
HELP PLEASE THANK YOU
Answer: A (b and F) They share the 90 degree angle and its just flipped
what is the solution to m/8 < 4
Answer:
m < 32
Step-by-step explanation:
m/8 < 4
m < 32
Answer:
m<32
Step-by-step explanation:
multiply both sides of the inequality by 8
[tex]8 \times \frac{m}{8} < 8 \times 4[/tex]
then, reduce the numbers with the GCF= 8
[tex]m < 8 \times 4[/tex]
Re-write the statement 19+7÷2-5 by including ONE pair of brackets to make the total value equal to 8
Answer:
(19+7)÷2-5
Step-by-step explanation:
you need to add 19 and 7 together first to get 8 then go in order of operations
PLEASR HELP THIS IS THE LAST QUESTION AND ITS DUR IN 4 MINUTES
Answer:
3x(3x-5)
Step-by-step explanation:
I can do this in my head but I hope it is right but if not I'm sorry
Answer:
- 3x ( x² - 4x + 5 )
Step-by-step explanation:
- 3x ( x² - 4x + 5 )
Solve for 3x^2-10x+8=0
(SHOW YOUR WORK)QUICKLY
Answer:
Step-by-step explanation:
Step 1: Factor left side of equation.
(3x−4)(x−2)=0
Step 2: Set factors equal to 0.
3x−4=0 or x−2=0
Answer:
x= 4 /3 or x=2
Answer:
5/3 +/- 1/3
or
x= 2
or
x= 1 /3
Step-by-step explanation:
plug all of the numbers into the formula attached,
the first coefficient is a, the second is b, and the last is c
So a=3 b=-10 and c=8
help me please!
i don’t understand!
Answer:
Harry is paid £64
Step-by-step explanation:
To work this out you have to divide 48 ÷ 6 to get 8.
8 hours x £8 = £64
Answer:
64
you have to find the LCM of 48 including 6 and use the other number which is 8 and multiply it by how long Harry worked 8 hours which gives you £64
What's the area and the perimeter of rectangle ABDC shown in the coordinate plane?
Question 2 options:
A)
Area = 32 square units; perimeter = 24 units
B)
Area = 24 units; perimeter = 32 square units
C)
Area = 24 square units; perimeter = 32 units
D)
Area = 32 units; perimeter = 24 square units
Doug makes a parallelogram-shape sign for his shop.
What is the area of this parallelogram?
Round to the nearest hundredth.
A. 5.32 ft²
B. 8.96 ft²
C. 14.28 ft²
D. 17.02 ft²
PLS HELP!!!
Answer:
C, 14.28
Step-by-step explanation:
area = base * height
= (1.9+3.2) * 2.8
=14.28
Answer:
Answer is C! brainliest this time pls
Help me pls pls pls
Answer:
Its 68
Step-by-step explanation:
Sum of all the angles is 180
63+49+w = 180
112+w=180
w=180-112
w=68
A rectangle has an area of 2x2 - 19x +45 ft? What are the dimensions of the rectangle? (hint: factor)
The dimensions of the rectangle will be (2x - 9)(x - 5).
What is a quadratic equation?A quadratic equation is a polynomial with a degree of 2 or the maximum power of the variable is 2 in quadratic equations. It has two solutions as its maximum power is 2.
Given that the area of the rectangle is represented by a quadratic equation 2x² - 19x +45.
The dimensions of the rectangle will be the factors of the quadratic equation.
2x² - 19x + 45
2x² - 10x -9x + 45= 0
2x( x - 5 )-9(x - 5)= 0
( 2x - 9 ) ( x - 5 ) = 0
Therefore, the dimensions of the rectangle will be (2x - 9)(x - 5).
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whats the domain of y=-3x+7?
PLEASE HELP PLEASEEEEEEEEEEEEEE
Answer
sorry it’s no the 9 shirts is wrong
Step-by-step explanation:
Answer:
No the cost of the 9 shirts is incorrect
what is 4.2 less than 7.6
Answer: 3.4
Step-by-step explanation: 6-2 is 4 and 7-4=3 therefore it’s 3.4
The solution is 3.4
The value of the equation 4.2 less than 7.6 is 3.4
What is an Equation?
Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the equation be represented as A
Now , the value of A is expressed as
A = 4.2 less than 7.6
Substituting the values in the equation , we get
A = 7.6 - 4.2 be equation (1)
On simplifying the equation , we get
The value of A = 7.6 - 4.2
The value of A = 3.4
Therefore , the value of A is 3.4
Hence , The value of the equation 4.2 less than 7.6 is 3.4
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I need help with this question I'm in 9th grade
Answer:
Check pdf
Step-by-step explanation:
Simplify the Expression
2(x +14) - (2x - 5)
your answer would be 33.
step 1
2(+14)−1(2−5)
2+28−1(2−5)
step 2 distribute
2+28−1(2−5)
2+28−2+5
step 3 then add the numbers
2+28−2+5
2+33−2
combine
2+33−2
ANSWER IS
33